The term "LADD" was first introduced by Temtamy (1974). LADD syndrome is characterized by varying degrees of hypoplasia/ aplasia of lacrimal ducts/glands, hypoplasia/aplasia of salivary glands, dental anomalies such as hypoplastic enamel, hypodontia, oligodontia, microdontia, inner and outer ear malformations, possible hearing loss, and digital anomalies

The number of pediatric dental clinics has been increasing due to the development of dentistry and changes in public awareness of professional dental care for children. The purpose of this study was to investigate the present status of pediatric dental clinics in Korea in several respects, including regional distribution.<br/>There were 343 pediatric dental clinics (1.91%) among 17,917 dental clinics in Korea. 248 out of 343 private practitioners were board certified pediatric dentists. Of 248 board certified pediatric dentists, 25 displayed the specialty in their clinics’ name. Gyeonggi occupied largest share of the total pediatric dental clinics in Korea, followed by Seoul and Busan. Gangnam-gu occupied largest share of the total pediatric dental clinics in Seoul. Out of all pediatric dental clinics in Korea, 78.7% was run by only one dentist. 90.9% of pediatric dental clinics didn’t do night clinic on weekdays and 26.5% was open until after 15:00 on Saturday.